Exercise Advice: Firmly grasp the handles on the dip machine and raise your body up to the starting position. Your arms should be almost extended in the starting position but make sure to have a little bend in your arms to keep the tension on the triceps. Slowly lower your body downwards, keeping your elbows in at your sides. If you keep your elbows out, you will be working more of the pectoral muscles. You should lower yourself down so that your arms are in a 90 degree position as illustrated in the photo. Slowly raise your body back up to the starting position, while keeping your elbows in and tension on your triceps.